Educational appliance.



STEPHEN J. JAMES, or 'sEAEoEn DELAWARE.

. EDUCATIONAL APPLIANCE.

Application'led February 19, 1.915. Serial No. 9,357.

To all whom #may concern."

Be it known that I, STEBHEN J. JAMES, a citizen of the United States,residing at Seaford, in the county of Sussex and State of Delaware, haveinvented new and useful Improvements in Educational Appliances,-

of which the following is a specification. g This invention relates toeducational apf pliances, and it has particular reference to a devicecombining a pencil box or case with a calculating device for additionand multiplication. j l

The invention has for its object to produce described comprising a boxor case equipped with a calculating device and having pockets orrecesses in which pencils, pen holders and the like may be placed forsafe keeping.

A further object of the invention is to simplify and improve theconstruction and assemblage ofthe parts constituting the invention.

With these and other ends in viewwhich will readily appear as the natureofthe inl5.315 vention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claims.` In the accompanying drawing has been illustrated asimple and preferred form of the invention, it being, however,understood that no limitation is necessarily made to the recisestructural details therein exhibited,

` ut-that changes, alterations and modifications within the scope of theclaims may be resorted to when desired. A In the drawing,-Figure 1 is aperspective view showing the improved device with the 40 lid of the boxthrown open. Fig. 2 isa longitudinal sectional view taken through thedevice with the lid closed, said'view being taken through, the axis ofthe cylinder of the calculating device. Fig. 3 is a transverse sectionalviewA taken on the line 3-3 in Fig. 2. Fig. Il, is a sectional viewtaken through the line 4 4 in Fig. 2. Fig. 5 is a plan view showing thesurface of a calculating cylinder.

are denoted by like characters of reference. The box 15 has a flangedlid 16 connected therewith by means of hinges 17, the free edge of thelid being provided with a catch 17 adapted to engage a latch or lock 18associated with the box for the purpose of Corresponding parts in theseveral figures retaining the lid in closed position. The box isprovided with a longitudinal partition 18 having separate compartments,one of which, 19, will constitute apocket in which pencils and the likemay be kept. Said pocket may be4 subdivided if desired. The other recessor pocket 20 serves to accommodate a cylinder 21 which is supported forrotation in the end walls of the box, said cylinder having adjacent oneend a circumferential iange 22, said flange having preferably a millededge so that it may be utijlized for conveniently .rotating thecylinder. a simple and eiicient device of the character The cylinder 21is covered by a sheet 23 of metal, cardboard, veneer or other suitablematerial, said sheet being secured on the top edges of the rear and endwalls of the box and also the top edge of the partition member 18. Saidsheet is provided with two elongated rectangular slots 24, 25 and withan intermediate slot or sight opening 26. Adjacent to the lower edge ofeach of the slots 24 and 25 are inscribed the numerals from 1 to 10,inclusive. The face of the cylinder is inscribed about midway betweenthe ends thereof with a circumferential series of numbers from 1 to 10,inclusive, said i Specification of Letters Patent. Patented NOV, 23,1915i.

numbers being visible, when the cylinder is rotated, through the sightopening 26. On the face of the cylinder between one end thereof andthecentral circumferential row of numbers there is inscribed longitudinaland circumferential rows of numbers, any one of which exposed adjacentto a number on the cover sheet will give the sum of such number plus thenumber exposed through the sight opening 26. On the face of the cylinderbetween the circumferential row of figures visible through the sightopening 26 and the other end of the cylinder are inscribedcircumferential and longitudinal rows of figures any one of whichexposed through the slot 25 opposite to any one of 4the row of figuresadjacent to said slot will indicate the product of `such figure and thenumeral which is at the time exposedthrough the vsight opening 26.Reference to Fig. 5 of the drawing will at a glance indicate how thenumbers inscribed on the cylinder are tabulated with the foregoing endsin view.

rIhe flanged lid 16 has-been shown as being provided with a longitudinalpartition 28 alining with the partition 18 in the body of the box andserving to prevent the contents of the compartment 19 from rubbing4appliance which is serviceable not only as a receptacle for pens,pencils andthe like, but

by means of which the problems of addi-j tion and multiplication tablesmaybe quickly and easily solved.

Having Vthus described the invention, what is claimed as new, is v 1. Adevice ofthe class described comprising a rectangular box having alongitudinal partition forming two longitudinal compartments, a cylindersupported for rotation in one compartment and having a flange whereby itmay 'be rotated, and a cover sheet secured onfthe top edges of the rearyand end walls of the box and of thev longitudinal partition, 'said sheethaving. sightv openings through which parts of the cylinder are exposed,and a flanged lid the box and having a longitudinal partition aliningwith the longitudinal partition inI the body of'the box; the cover sheetbeing provided adjacent to some of the sight openings withnuinerals from1 to 10, inclusive,

inscribed thereon, there being an additional 'intermediate sightopening, and the cylinder being inscribed circumferentially adjacent tosaid intermediate sight opening with numerals from l to 10, inclusive; aportion of the cylinder visible through one sight opening adjacent towhich numerals are inscribed being inscribed with longitudinal andvcircumferential rows of numbers, any one of which exposed adjacent toany number on the cover sheet will give the sum of such number plus thenumber exposed through the intermediate sight opening; and a portion ofthe cylinder visible through the other sight opening adjacent to whichnumbers are inscribed being inscribed with circumferential andlongitudinal rows 'of figures, any one of which exposed through thesight opening opposite to any-one of the rows of gures adjacent to said'opening will indicate the product of such figure and the exposedfigure.

' 2. Adevice of the class described comprising' a rectangular box havinga longitudinal partition forming two longitudinal compartments, acylinder supported for rotation in one compartment and having a iian ewhereby it may be rotated, and a cover s eet secured on the top edges ofthe rear and end walls' of the box and of the longitudinal partition,said sheet having sight openings through which parts of the cylinder areexposed, the cover sheet `being provided adjacent to some of the sightopenings with numerals from l tov-10, inclusive, inscribed thereon,there being an additional intermediate sight opening, and the cylinderbeing inscribed circumferentially adjacent to said intermediate sightopening with numerals from l to 10 inclusive; a portion of. the cylindervisible through one sight hingedlyv connected with the, rear wall ofopening adjacent to which numerals are inscribed being inscribed Vwithlongitudinal and circumferential rows of numbers, any

one of which exposed adjacent to any number on the cover sheet will givethe sum of such number plus the` number exposed through the intermediatesight opening; and a portion of theV cylinder visible through the othersight opening adjacenttov which numbers are inscribed being 1nscribedwith circumferential and longitudi- .nal rows of `gures anyone of whichexin presence of two witnesses.

STEPHEN J. JAMES. Witnesses: Y

W. H. THORNE, j FRANK A. RoAcH.

